pmip3:design:lm:index
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| Both sides previous revision Previous revision Next revision | Previous revision Next revision Both sides next revision | ||
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pmip3:design:lm:index [2009/07/09 20:35] ammann |
pmip3:design:lm:index [2009/08/01 21:38] gavin |
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| ===== Boundary conditions ===== | ===== Boundary conditions ===== | ||
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| ==== Summary of Last Millennium boundary conditions ==== | ==== Summary of Last Millennium boundary conditions ==== | ||
| ^ ^ PMIP3 ^ Alternative solution ^ | ^ ^ PMIP3 ^ Alternative solution ^ | ||
| - | | Orbital parameters | Annually varying (850-1850) | 1850 values or same Pre-Ind CMIP5 control | | + | | Orbital parameters | Annually varying (850-1850) (Table provided if not internally calculated)| 1850 values or same as Pre-Ind CMIP5 control [ **ecc** = ] - [ **obl** = ° ] - [ **peri-180°** = ° ] | |
| - | | | Table provided if not internally calculated |[ **ecc** = ] - [ **obl** = ° ] - [ **peri-180°** = ° ] | | + | |
| | Date of vernal equinox | Mar 21 hr 0 | same as CMIP5 control | | | Date of vernal equinox | Mar 21 hr 0 | same as CMIP5 control | | ||
| - | | Trace gases | Annually varying (850-1850) | constant at CMIP5 control levels | | + | | Trace gases | Annually varying (850-1850) (Table provided) | constant at CMIP5 control levels [ **CO<sub>2</sub>** = ppm ] - [ **CH<sub>4</sub>** = ppb ] - [ **N<sub>2</sub>O** = ppb ] - [ **CFC** = ] - [ **O<sub>3</sub>** = ] | |
| - | | | Table provided | [ **CO<sub>2</sub>** = ppm ] - [ **CH<sub>4</sub>** = ppb ] - [ **N<sub>2</sub>O** = ppb ] - [ **CFC** = ] - [ **O<sub>3</sub>** = ] | | + | | Volcanic Aerosols | Multiple reconstructions (of AOD, Effective Radius, Mass) | | |
| - | | Aerosols | | | | + | |
| | | | | | | | | | | ||
| - | | Solar constant | W/m<sup>2</sup> | | | + | | Solar irradiance | Multiple reconstructions (default TBD) | | |
| - | | Vegetation | | | | + | | Ozone | solar related variations (parameterised as function of change in solar irradiance - Drew Shinedll) | same as pre-Ind control | |
| - | | Ice sheets | | | | + | | Aerosols | biomass burning changes???? | same as pre-Ind control | |
| - | | Topography and coastlines | | | | + | | Vegetation | Land use conversion (forests to C3/C4 crops) (Pongratz, 2008, Foley and Ramunkutty) | No change from Pre-Ind control | |
| + | | | available from WDCC-Hamburg (http://cera-www.dkrz.de/WDCC/ui/Entry.jsp?acronym=LAND_COV_scen_800_1699) | | | ||
| + | | Ice sheets | No changes from Pre-Ind control | | | ||
| + | | Topography and coastlines | No change from Pre-Ind control | | | ||
| Please use the [[index#page_bottom_tag|discussion]] panel to **comment** this table! | Please use the [[index#page_bottom_tag|discussion]] panel to **comment** this table! | ||
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| Millennium simulations (black curve), a 11 year cycle was added for consistency over the | Millennium simulations (black curve), a 11 year cycle was added for consistency over the | ||
| entire period. | entire period. | ||
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| + | Notes: We will impose an 11 year cycle on pre-sunspot reconstructions for consistency of the spectrum of natural variability. Additionally, we will give a spectral set of irradiance changes based on modern variability observed by satellite (Lean). | ||
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| + | Candidate reconstructions: Krivova, Steinhilber, new Bard?, (TBD) | ||
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| + | ==== Volcanic Forcings ==== | ||
| + | |||
| + | Issues: compatability of eff. rad, zonality, height distribution with modern satellite (Sato) data. | ||
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| + | Candidate datasets: Crowley, Ammann - differences in thresholds for significant eruptions, peak forcing etc. Need merged/consistent fields. (Ammann) | ||
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pmip3/design/lm/index.txt · Last modified: 2010/09/16 12:38 by jypeter
